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2023 NECO Computer Studies (Objective & Essay) Questions and Answers

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2022 NECO Computer Studies Essay Answers:

(2ai) E mail service is a means of sending message,text and computer files between computers via the internet. Email is the exchange of computer stores messages by telecommunications. Email service provider (ESP) allows users to send email campaigns to a list of subscribers.

(2aii) (Pick Any Three)

(i) managing email is easy (ii) Email is fast (iii) Email is inexpensive (iv) Email is easy to filter (v) Email Transmission is secure and Reliable

(2bi) Broadcasting is the distribution of audio and video content to a dispersed audience via any audio or visual mass communications medium, but usually one using electromagnetic radiation (radio waves). The receiving parties may include the general public or a relatively large subset thereof. Broadcasting has been used for purposes of private recreation, non commercial exchange of messages,experimentation ,self training and emergency communication.

(2bii) (Pick Any Three)

(i) Personal Area Network (PAN) (ii) Metropolitan Area Network (MAN) (iii) Local Area Network (LAN) (iv) Wide Area Network (WAN)

(3i) Bandwidth: Bandwidth is the capacity of data that can be transferred between the website, its users and the servers. It is the capacity of the connection between the website user and the server. Bandwidths are either expressed in MB/s (Megabytes per Second) or GB/s (Gigabytes per Second).

(3ii) Bookmark: Bookmark is a Web browser feature used to save a Uniform Resource Locator(URL) address for future reference. Bookmarks save user and browser time, which is especially useful for Web pages with long Uniform Resource Locator(URLs).Browsers usually provide folder options for related bookmarks

(3iii) Download: Download means to receive data from a remote system, typically a server such as a web server, an FTP server, an email server, or other similar system. Download can refer to the general transfer of a file from one computer to another over a network,usually from a larger server to a user device.

(3iv) HTML: HTML stands for HyperText Markup Language. It is a standard markup language for web page creation. It allows the creation and structure of sections, paragraphs, and links using HTML elements (the building blocks of a web page) such as tags and attributes.

(3v) Hyperlink: Hyperlink is an element in an HTML document that links to either another portion of the document or to another document altogether. On webpages, hyperlinks are usually colored purple or blue and are sometimes underlined.

(4ai) Hotspots are hyperlinks within your Microsoft PowerPoint presentations. Rather than adding text or buttons, you can make an image a link directly for a more stylish and professional looking presentation. Hotspots prompt the user to click on them to display more information about the object/image being viewed

(4aii) (Pick Any Four)

(i) Flexibility (ii)User Friendly (iii)Portability (iv)Reliability (v)Self-Documenting Code

(4b) ADVANTAGES OF RADIO BROADCASTING: (Pick Any Three)

(i)Radio broadcasting can be enjoyed at home, at work, and while driving. (ii) Permits you to create a personality for your business using only sounds and voices. (iii) Radio provides a huge selection of channels based on geographical location (iv)Compared to TV, radio is a cost-efficient

DISADVANTAGES OF RADIO BROADCASTING: (Pick Any Three)

(i) Listeners cannot refer back to your adverts to go over important points. (ii)Only audio media and no visuals are available (iii)It has limited research data and frequency bandwidth (iv)Sometimes it is difficult to get the proper signals from a radio station

(5ai) Light Pen: light pen is a light-sensitive pen-like device used by pointing it at the display surface. A user brings the light pen to the desired point on the screen and presses a button, causing it to identify the current location. It is used to select options from a menu or to draw images.

(5aii) Barcode reader: Bar code is a specialized code represented by sets of parallel bars of varying thickness and separation. This is used for fast identification of items with an optimal scanner. The optical scanner is called a bar code reader. The bar code reader is a photoelectric scanner that read the bar code.

(5aiii) Plotter: Plotters are large scale printers that are connected to a computer. They are typically used to print CAD (Computer Aided Drafting) drawings created by engineers and for banner advertisements and other large promotional materials. They are used mainly by industry and businesses who need a flexible, efficient and cost effective printing solution.

(5aiv) Speaker: Speakers are attached to computers for the output of sound. Sound cards are required in the computer for speakers to function. Speakers range from simple, two-speaker output devices to surround-sound multi channel units.

(5bi) (Pick Any Two)

(i) Drum plotter (ii) Flat-bed plotter (iii) Inkjet plotter

(5bii) Graphic packages are those programs that allow artiste and computer users to use computers to create, edit, display and print graphic images. A graphics package is an application that can be used to create and manipulate images on a computer. Examples include Paint, Adobe Photoshop, Corel draw, CAD (computer aided design).

(5biii) (Pick Any Two)

(i) Painting packages (ii) Drawing packages (iii)photo editing (iv) Computer Aided Design(CAD)

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Computer Studies Questions and Answers PDF for NECO 2022

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NECO ANSWERS , Past Questions & Answer

NECO 2023: Computer Studies Objectives and Essay Questions with Solutions

neco computer obj and essay answers pdf

NECO COMPUTER ANSWERS

(1a) The concept of a database refers to an organized collection of structured data that is stored and managed electronically. It is designed to efficiently store, retrieve, and manage large amounts of information. Databases typically use tables to organize data into rows and columns.

(1bi) Character: A character is a single text unit or symbol, such as a letter, number, punctuation mark, or space.

(1bii) Field: In database terminology, a field is a specific type of data stored in a table. A field usually contains information relevant to the entire row of data that it belongs to.

(1c) (PICK ANY TWO) (i) Access to information: The internet provides access to a huge amount of information that would otherwise be unavailable. (ii) Communication: The internet has revolutionized how we communicate with one another. People can exchange messages instantly and communicate in real-time, no matter where they are located. (iii) Entertainment: The internet has made it easier for people to access entertainment, such as movies, music, games, and much more. (iv) Shopping: People can now shop online from anywhere in the world, without having to set foot inside a store. (v) Social Networking: Sites like Facebook, Twitter, and LinkedIn provide a platform for people to share ideas and stay connected. (vi) Education: The internet has made it easier than ever for students to learn, by providing access to an abundance of educational resources.

(1d) A file is a collection of data that is stored on a computer or other electronic device. It can contain text, images, videos, programs, or any other type of information. Files are typically named and have a specific file format that determines how the data should be organized.

A folder is a virtual container in a computer’s file system that stores and organizes multiple files. Folders allow users to logically group related files together, making it easier to locate them when needed.

(2ai) (check the diagram below) -Bus Topology- A bus topology is a network configuration where all the devices are connected to a single communication line, called a bus. In this topology, devices are connected to the bus through a device that acts as a repeater, allowing the signal to be propagated in both directions.

(2aii) (Check the diagram below) -Star Topology- A star topology is a network configuration in which each device is connected directly to a single central device known as the “hub”. In this topology, the hub acts as a connection point between all the other devices in the network and sends data packets to each device.

(2bi) Hacking: Hacking is the unauthorized access or control of another person’s computer system in order to steal or manipulate data or resources.

(2bii) Piracy: Piracy is the unauthorized copying or distribution of copyrighted material such as music, movies, software, etc.

(2c) (i) Hard Disk Drives (HDDs): These are traditional storage devices that use magnetic discs to store and retrieve data. Examples Western Digital Caviar Blue, Seagate BarraCuda (ii) Solid-State Drives (SSDs): These are newer storage devices that use integrated circuits to store and retrieve data. Examples , the Samsung 860 EVO, Kingston A400.

NUMBER THREE

(3ai) An operating system is a software that manages computer hardware and software resources and provides common services for computer programs.

(3aii) (i) Windows Operating System (ii) Linux Operating System

(3bi) (PICK ANY TWO) (i) To provide uninterrupted power supply. (ii) To ensure data security. (iii) To prevent system crashes due to electricity failure. (iv) To provide protection against power surges. (v) To protect data from corruption. (vi) To keep the system running in case of an emergency.

(3bii) Check the diagram below

(3biii) The octal number system is based on the base 8 system, with the numbers 0 to 7 as its components, WHILE the binary number system is based on the base 2 system, with the numbers 0 and 1 as its components.

(3biv) (i) Portrait Orientation (ii) Landscape Orientation

COMPUTER STUDIES

(5ai) High-level programming languages are languages designed to be more user-friendly and abstracted from the low-level details of the computer’s hardware. They offer more human-readable syntax and provide a higher level of abstraction, allowing programmers to write code that is easier to understand and maintain.

(5aii) (PICK ANY THREE)

(i)Machine consists of binary code (0s and 1s) that directly represents instructions that a computer’s central processing unit (CPU) can execute. It is specific to the computer’s architecture. WHILE Assembly Language uses mnemonic codes (short abbreviations) to represent the machine-level instructions. These mnemonics are more human-readable and are later translated into machine code by an assembler.

(ii)Machine Language is not easily readable by humans due to its binary nature. WHILE Assembly Language is more readable than machine language since it uses mnemonics and symbolic names for operations and registers.

(iii)Machine Language Provides no abstractions and directly corresponds to hardware operations. WHILE Assembly Language offers a slight level of abstraction by using mnemonics to represent operations.

(iv)Machine Language typically used by the computer’s CPU to execute instructions. WHILE Assembly Language used by programmers to write low-level code that’s more human-readable than machine code.

(v)Machine Language is the lowest level of programming, closest to the hardware. WHILE Assembly Language is a higher level than machine language but still considered low-level.

(5bi) network interface: Network interface often referred to as a network interface card (NIC) or network adapter, is a hardware component that connects a computer or device to a network. It serves as the interface between the computer’s software and the physical network medium, enabling data to be transmitted and received over the network.

(5bii) Network protocol: Network protocol is a set of rules and conventions that govern how data is exchanged and communicated between devices and systems in a network. It defines the format, structure, and sequence of messages or packets that are exchanged between devices to ensure proper communication.

(5ci) Keyboard shortcut keys to switch between open Application

(a)Alt + Tab (on Windows): This allows you to cycle through open applications and switch to the one you want.

(a)Command + Tab (on macOS): Similar to Alt + Tab on Windows, this lets you switch between open applications.

(5cii) Keyboard shortcut key to rename selected file

(a)F2 (on Windows): When a file is selected in Windows Explorer, pressing F2 allows you to quickly rename the file.

(b)Return (Enter) (on macOS): When a file is selected in Finder on macOS, pressing Return (Enter) allows you to edit the file name, effectively renaming it.

(6ai) Integer: Integer is a whole number that does not have any fractional or decimal part. It can be either positive, negative, or zero. In data representation, integers are commonly stored using a fixed number of bits, where the bit pattern corresponds to the integer value according to a specific encoding scheme, such as two’s complement.

(6aii) Floating Point Number: floating-point number, often simply referred to as a “float,” is a representation of a real number that can have both a whole number and a fractional part. In data representation, they are stored in a binary format using a sign bit, an exponent, and a fraction (also known as a significand or mantissa).

(6bi) Hexadecimal number: 9AB

9 in hexadecimal = 1001 in binary. A in hexadecimal = 1010 in binary. B in hexadecimal = 1011 in binary.

So, the binary representation of 9AB is 10011010101011

Grouping in sets of three from right to left: 010 011 010 101 011

Converting each group to octal:

010 = 2 in octal 011 = 3 in octal 010 = 2 in octal 101 = 5 in octal 011 = 3 in octal

Therefore, the octal representation of the hexadecimal number 9AB is 23253.

10 LET sum = 0 20 FOR i = 1 TO 50 STEP 2 30 LET sum = sum + i * i 40 NEXT i 50 PRINT “Sum of squares of odd numbers between 1 and 50: “; sum

COMPUTER STUDIES OBJECTIVES SOLUTIONS 01-10: CAEBEBEBBA 11-20: ACAACCCCCC 21-30: CEAADAABCA 31-40: CCDCCEBADA 41-50: DBEBCADDDD 51-60: BDBADDDACD

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  • NECO Past Questions and Answers For All Subjects | Updated Copy

April 22, 2024 Agunwa Franklin Post UTME 0

NECO Past Questions and Answers

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(1bi) Character: A character is a single text unit or symbol, such as a letter, number, punctuation mark, or space.

(1bii) Field: In database terminology, a field is a specific type of data stored in a table. A field usually contains information relevant to the entire row of data that it belongs to.

(1c) (PICK ANY TWO) (i) Access to information: The internet provides access to a huge amount of information that would otherwise be unavailable. (ii) Communication: The internet has revolutionized how we communicate with one another. People can exchange messages instantly and communicate in real-time, no matter where they are located. (iii) Entertainment: The internet has made it easier for people to access entertainment, such as movies, music, games, and much more. (iv) Shopping: People can now shop online from anywhere in the world, without having to set foot inside a store. (v) Social Networking: Sites like Facebook, Twitter, and LinkedIn provide a platform for people to share ideas and stay connected. (vi) Education: The internet has made it easier than ever for students to learn, by providing access to an abundance of educational resources.

(1d) A file is a collection of data that is stored on a computer or other electronic device. It can contain text, images, videos, programs, or any other type of information. Files are typically named and have a specific file format that determines how the data should be organized.

A folder is a virtual container in a computer’s file system that stores and organizes multiple files. Folders allow users to logically group related files together, making it easier to locate them when needed. •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••

(2ai) (check the diagram below) -Bus Topology- A bus topology is a network configuration where all the devices are connected to a single communication line, called a bus. In this topology, devices are connected to the bus through a device that acts as a repeater, allowing the signal to be propagated in both directions.

(2aii) (Check the diagram below) -Star Topology- A star topology is a network configuration in which each device is connected directly to a single central device known as the “hub”. In this topology, the hub acts as a connection point between all the other devices in the network and sends data packets to each device.

(2bi) Hacking: Hacking is the unauthorized access or control of another person’s computer system in order to steal or manipulate data or resources.

(2bii) Piracy: Piracy is the unauthorized copying or distribution of copyrighted material such as music, movies, software, etc.

(2c) (i) Hard Disk Drives (HDDs): These are traditional storage devices that use magnetic discs to store and retrieve data. Examples Western Digital Caviar Blue, Seagate BarraCuda (ii) Solid-State Drives (SSDs): These are newer storage devices that use integrated circuits to store and retrieve data. Examples, the Samsung 860 EVO, Kingston A400. •••••••••••••••••••••••••••••••••••••••••••••••••••••••

(3ai) An operating system is a software that manages computer hardware and software resources and provides common services for computer programs.

(3aii) (i) Windows Operating System (ii) Linux Operating System

(3bi) (PICK ANY TWO) (i) To provide uninterrupted power supply. (ii) To ensure data security. (iii) To prevent system crashes due to electricity failure. (iv) To provide protection against power surges. (v) To protect data from corruption. (vi) To keep the system running in case of an emergency.

(3bii) Check the diagram below

(3biii) The octal number system is based on the base 8 system, with the numbers 0 to 7 as its components, *WHILE* the binary number system is based on the base 2 system, with the numbers 0 and 1 as its components.

(3biv) (i) Portrait Orientation (ii) Landscape Orientation •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••

(5ai) High-level programming languages are languages designed to be more user-friendly and abstracted from the low-level details of the computer’s hardware. They offer more human-readable syntax and provide a higher level of abstraction, allowing programmers to write code that is easier to understand and maintain.

(5aii) (PICK ANY THREE)

(i)Machine consists of binary code (0s and 1s) that directly represents instructions that a computer’s central processing unit (CPU) can execute. It is specific to the computer’s architecture. WHILE Assembly Language uses mnemonic codes (short abbreviations) to represent the machine-level instructions. These mnemonics are more human-readable and are later translated into machine code by an assembler.

(ii)Machine Language is not easily readable by humans due to its binary nature. WHILE Assembly Language is more readable than machine language since it uses mnemonics and symbolic names for operations and registers.

(iii)Machine Language Provides no abstractions and directly corresponds to hardware operations. WHILE Assembly Language offers a slight level of abstraction by using mnemonics to represent operations.

(iv)Machine Language typically used by the computer’s CPU to execute instructions. WHILE Assembly Language used by programmers to write low-level code that’s more human-readable than machine code.

(v)Machine Language is the lowest level of programming, closest to the hardware. WHILE Assembly Language is a higher level than machine language but still considered low-level.

(5bi) network interface: Network interface often referred to as a network interface card (NIC) or network adapter, is a hardware component that connects a computer or device to a network. It serves as the interface between the computer’s software and the physical network medium, enabling data to be transmitted and received over the network.

(5bii) Network protocol: Network protocol is a set of rules and conventions that govern how data is exchanged and communicated between devices and systems in a network. It defines the format, structure, and sequence of messages or packets that are exchanged between devices to ensure proper communication.

(5ci) Keyboard shortcut keys to switch between open Application

(a)Alt + Tab (on Windows): This allows you to cycle through open applications and switch to the one you want.

(a)Command + Tab (on macOS): Similar to Alt + Tab on Windows, this lets you switch between open applications.

(5cii) Keyboard shortcut key to rename selected file

(a)F2 (on Windows): When a file is selected in Windows Explorer, pressing F2 allows you to quickly rename the file.

(b)Return (Enter) (on macOS): When a file is selected in Finder on macOS, pressing Return (Enter) allows you to edit the file name, effectively renaming it. •••••••••••••••••••••••••••••••••••••••••••••••••••••••

(6ai) Integer: Integer is a whole number that does not have any fractional or decimal part. It can be either positive, negative, or zero. In data representation, integers are commonly stored using a fixed number of bits, where the bit pattern corresponds to the integer value according to a specific encoding scheme, such as two’s complement.

(6aii) Floating Point Number: floating-point number, often simply referred to as a “float,” is a representation of a real number that can have both a whole number and a fractional part. In data representation, they are stored in a binary format using a sign bit, an exponent, and a fraction (also known as a significand or mantissa).

(6bi) Hexadecimal number: 9AB

9 in hexadecimal = 1001 in binary. A in hexadecimal = 1010 in binary. B in hexadecimal = 1011 in binary.

So, the binary representation of 9AB is 10011010101011

Grouping in sets of three from right to left: 010 011 010 101 011

Converting each group to octal:

010 = 2 in octal 011 = 3 in octal 010 = 2 in octal 101 = 5 in octal 011 = 3 in octal

Therefore, the octal representation of the hexadecimal number 9AB is 23253.

10 LET sum = 0 20 FOR i = 1 TO 50 STEP 2 30 LET sum = sum + i * i 40 NEXT i 50 PRINT “Sum of squares of odd numbers between 1 and 50: “; sum CLICK HERE TO JOIN OUR TELEGRAM CHANNEL FOR ALL 2023 EXAM ANSWERS FOR FREE ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• Completed!!! •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••

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  • NECO Past Questions 2021

December 18, 2023 Victoria Jackson NECO , Past Questions 0

English Past Question 2021

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NECO Past Questions 2021

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A.  development of secondary sexual characteristics B.  onset of the heat period C.  milk let–down after parturition D.  development of udder

A.  0.83 kg B.  1.21 kg C.  1.28 kg D.  2. 25kg

A.  the eggs cannot be candled B.  the chicks are less healthy C.  the brooding hens sometimes abandon the eggs D.  it takes a longer time for eggs to hatch

A.  increase water intake B.  provide bulk to feed C Reduce microbial activity D.  provide deficient nutrients

A.  Aspergillosis B.  Acidosis C.  Milk fever D.  Rickets

A.  potential energy B.  mechanical energy C.  nuclear energy D.  solar energy E.  kinetic energy

A.  harrow B. ridge C.  cultivator D.  planter E.  plough

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NECO Computer Studies Past Questions and Answers in 7419 – Objective/Essay

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neco computer studies past questions answers

Table of Contents

  • 1 SSCE NECO Comp. Studies Obj and Essay Past Questions.
  • 2 NECO Computer Obj Questions
  • 3 NECO Computer Academic Previous Question
  • 4 Free NECO Previous Question on Computer Studies Download
  • 5 How to Get My Studies Testing Questions

SSCE NECO Comp. Studies Obj furthermore Essay Former Question.

COMPUTER STUDIES PAPER 3 Color 5 will continue for 3 hour 65 recorded Attempt all questions from like section Answer Essay 3 off autochthonous destination test ask sheet, Use HB pencil throughout.

Answer All Questions Each get is followed by five options lettered A – E. Choose the correct option for each question and shaded inches pencil on to answer sheet the answer space which bears the same letter as the option you have chosen. Give only one respond to each question and erase completes optional answer them wish up modification. Do all rough work on this question paper.

With example lives given below.

In a word processing environment, and icon [ x ] will___a program at clicked

A. save BARN. open CENTURY. format D. clear E. closer

One correct option is “close” which are lettered E Therefore, answer space E would be shaded.

[A] [B] [C] [D] [E ]

Think carefully before thee shade the answer clear; clear completely each answer(s) you wish till change Now answer the following questions

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NECO Computer Obj Questions

1. One Petabyte is equated until terabytes. A. 1512 BARN. 3907 C. 3217 D. 7592 EAST. 2952

2. The Global Wide Webs was invented by A. Bjane Stroustrup. BARN. Charles Babbage. CARBON. Johns Alarm Backus. D. Jon Stepherson. E. Tim Berners Lee.

3. The extension ,wmv, stores file. ADENINE. animation B. audio C. diagramm D. image E. see

4. A graphical instrument the shows the stages the user execution is A. optimizing. B. encoding. C. design. D. flowchart. CO. pseudocode.

5. A download box obtained without permission are said until be ONE. doubles. B. made. CARBON. hacked. D. pirated. E. stolen.

6. The type of error that a developer detects before program slaying can A. internal B. logical C. runtime. D. seamless. CO. syntax.

7. The is a computer network that spans through ampere large geographical area. A. NETWORK B. PAN C. SAN DICK. WAN E. WLAN

8. Which computer language that will exclusive suited ftr numeric and scientific calculations is A. BASIC. B. C. C. C++. DIAMETER. COBOL. E. FORTRAN.

9. The protocol used to transference mesh browse to computer is ADENINE. HTTP. B. HETTY. C. SMTP. DENSITY. TCP. E. UDP.

85. The circuit used as a memory devices in computers is A. decoder. B. geared. C. flip flop. D. harddisk. E. modem.

52. Which of the following is an attribute that helps to identify rows in a relation at database? A. Field B. Column C. Key DICK. Consultation E. File

85. Which out the following is not an feature of rail online? AMPERE. Automatic updates B. Integrated search C Internet forums DEGREE. Navigation buttons EAST. Registered browsing

48. What is that decimal equivalent of an octal number 48257? A. 9415 20 BARN. 1755 92 C. 0164 42 D. 3307 23 E. 4157 02

03. One of the drawbacks of a linear bus topology is that l A. a cabling break can disable the entire network. B. it is light to identify the problem in case away network closing. CARBON. a is comfortable to implement and extend. DEGREE. it is easy to set up. E. it requires save cable to set up.

23. Which on the follow is ampere computer virus that replicates itself without human intrusion? A. Cryptolocker B. ESET C. ILOVEYOU D. Penicillin SIE. Trojan Horse

02. The Boolean expression for an 8-input OR gate is A. A + B + C + DIAMETER. BORON. A + B + CD. C. AB + CD. DEGREE. ABC + DIAMETER. SIE. ABCD

34. The numerated constant with static values that does not contain degree points which the BASICALLY interpreter uses during program murder is A. fixed point. B. swimming point. CARBON. hexadecimal. D. integer. E. octc. NCLEX Practice Questions Examine Bank available Free.

55. Which concerning the following is not an web development solutions? A. Adobe Dreamweaver B. Macaw C. Mockplus DIAMETER. Visme E. WordPress

81. The distribution of audio furthermore watch contents to a dispersed audience via accessories lives A. broadcasting. B. communication. C. infonnatiorf. D. interaction. E. telepresence.

65. In Microsoft Exceed, each column is identified for A. alphabets. B. floating mathematics. C. headers. D. symbolism. E. special character.

82. And CorelDraw tool used in clipping the region of an image that is not needed exists A. artistry media. BORON. crop. C. free transform. DENSITY. shaper. E. zoom.

76. The following are key of computer netz except, it A. depends on its user. BORON. increases access to the information in and resource centre. C. increases efficiency. D. provides more information quellenangaben. ZE. provides additional possibilities for connectivity.

14. The first commercial computer EINSEITIG VAC was built ready for benefit include A. 9857. B. 7365. C. 4564. DENSITY. 0581. E. 5942.

08. A logic gate which implements logical negation an its input is AN. BOTH. B. EX-OR. C. NAND. DIAMETER. DID. E. OR.

30. Any among the follow is not an inventor of adenine counting device? ONE. Blaise Pascal B. Charles Babbage C. Elon Musk D. John Napier E. Tim Cranmer

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NECO Computer Theory Past Asking

[ 23 marks ]

Trigger four faqs in all

1. (a) Write short notes on these components of the Central Processing Unit: i. Control unit (2 marks) ii. Arithmetic reasoning unit (2 marks) iii. Record (2 marks) Chatbots applications is education: AMPERE systematic review.

(b) i. Define phishing? (2 marks) ii. Condition two factors affecting the pace of a information transfer. (1 mark) iii. List two examples of antivirus softwares. (1 mark)

2. (a)i. Whatever is a compiler? (2 marks) ii. Write an BASIC program to calculate the field of a circle of radiator radius. (4 marks)

(b) State the function of the following keys in Microsoft Word: i. F5 ii. F1 (2marks)

(c) What is a character set? (2 marks)

3.(a) Draw an truth charts for the ensuing logic gates:

i. 2 input AND gate (2 marks)

ii. 2 input WITH gate (2 marks)

iii. 2 input NOR gate (2 marks)

(b) i.Mention three top gauge domains and their functions. (3 marks)

ii. List two examples to an surf browser. (1 mark)

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CLICK HERE TO VIEW ANSWER No. 1 on Computer

The control unit is a component of a computer's central processing unit that directs the operation of the processor.

CU typically uses a binary decoder to convert coded instructions into timing and control signals that direct the operation of the other units. Most computer resources are managed by the CU.

An arithmetic logic unit is a combinational digital circuit that performs arithmetic and bitwise operations on integer binary numbers. This is in contrast to a floating-point unit, which operates on floating point numbers.

Register is defined as the small subset of the data that has fast accessible memory in the central processing unit. For the execution of different computer instructions and programs type of registers are used. There are numerous categories of computer registers that are available for the execution of instructions. The registers can be categorized by their size, functions, or names. These registers are used to store the data temporarily and perform the execution of computer instructions and can be also used to store results in it. The processing speed of registers is the fastest to another data set.

Phishing is a type of social engineering attack often used to steal user data, including login credentials and credit card numbers.

(i) Network Congestion.

(ii) Infrastructure Parameters (QoS, Filtering, 'copied from e x a m p l a z a . c o m free' Routing)

(i) AVG Antivirus

(ii) Norton Antivirus.

(iii) Ad-Aware

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NECO Computer Studies Questions & Answers 2022/2023 (OBJ & Essay)

  • February 23, 2022

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NECO Computer Studies Objective Answers 2021

Today’s NECO Computer Studies Objective Answers for 2021

1-10: EAECAEDEAC

11-20: AECEDAEACB

21-30: BCCAADCDDE

31-40: EAECAEDEAC

41-50: AECEDAEACB

51-60: DDCDDEEBCA

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NECO Computer Studies 2021 Answers

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Objective & Essay – Computer Studies – 10:00am–1:00pm

COMPUTER OBJ: 1-10: EEBDCEDEBD 11-20: CADAEDDBAA 21-30: BAADCADCEC 31-40: AABAABBCDB 41-50: ABCDEABEAD 51-60:CADADACDEE

(1ai) The control unit is a component of a computer’s central processing unit that directs the operation of the processor

(1aii) An arithmetic logic unit is a combinational digital circuit that performs arithmetic and bitwise operations on integer binary numbers.

(1aiii) Registers are type of computer memory used to quickly accept, store, and transfer data and instructions that are being used immediately by the CPU.

(1bi) Phishing is a type of social engineering attack often used to steal user data, including login credentials and credit card numbers.

(1bii) (i) Network Congestion. (ii) Infrastructure Parameters (QoS, Filtering, Routing)

(1biii) (i) AVG Antivirus (ii) Norton Antivirus. (iii) Ad-Aware

(2ai) A compiler is a computer program that translates computer code written in one programming language into another language. The name “compiler” is primarily used for programs that translate source code from a high-level programming language to a lower level language to create an executable program.

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(2bi) – F5: In all modern Internet browsers, pressing F5 will refresh or reload the page or document window.

(2bii) – F1: Almost always used as the help key, almost every program opens a help screen when this key is pressed.

(2c) A character set defines the valid characters that can be used in source programs or interpreted when a program is running.

neco computer obj and essay answers pdf

(3bi) (i) .com; they are use initially intended to distinguish commercial organizations

(ii) .net ; they are use connect Nordic national research and educational networks

(iii) .org ; they are use for both nonprofit and for-profit organizations.

(3bii) (i)Google Chrome. (ii)Mozilla Firefox

(4ai) Network Topology is the schematic description of a network arrangement, connecting various nodes(sender and receiver) through lines of connection.

(4aii) (i)Transmitting network is not affected by high traffic or by adding more nodes, as only the nodes having tokens can transmit data. (ii)Cheap to install and expand

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(4bii) An algorithm is a finite sequence of well-defined, computer-implementable instructions, typically to solve a class of specific problems or to perform a computation.

(4biii) -Word processor- (i)Abiword (ii)Corel WordPerfect

-Spreadsheet packages- (i)Google Sheets (ii)Microsoft Excel

(5ai) File security is a feature of your file system which controls which users can access which files, and places limitations on what users can do to various files in your computer.

(5aii) -FILES- (i) Computer files are transferred electronically. (ii) Computer files are difficult to destroy and can last for a long time. (iii) Computer files is difficult to access at all times

-MANUAL FILES- (i) Manual files can be transported through physical means (ii) Manual files can warn off and can be depleted easily by hand. (iii) Manual files is Easy to access whenever required

(5aiii) A programming language is a formal language comprising a set of strings that produce various kinds of machine code output.

neco computer obj and essay answers pdf

(5bii) -(Pick any two)- (i) Keyboard (ii) Mouse (iii) Scanner (iv) Cameras (v) Joystick

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neco computer obj and essay answers pdf

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NECO History Past Questions Download – Objectives and Theory

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Are you writing the National Examination Council NECO Internal/External exam, if yes you need the NECO History Past Questions.

we at stcharlesedu.com has compiled a good number of History NECO Past Questions in pdf. History Paper 2 – Theory/Essay Questions. History Paper 3 – Objective Test Questions.

Our research has confirm that candidate that uses National Examination Council History past questions to prepare for NECO is ten times better than those who do not.

History Past Questions for SSCE Senior Secondary School

Table of Contents

  • 1.1 NECO Paper 3 Objective Test Questions in History.
  • 2 NECO History Theory/Essay Past Questions,
  • 3 Free NECO History Exam Questions Download
  • 4 How to Get National Examination Council NECO History Past Questions

SSCE NECO History Objective Questions – Paper 3.

HISTORY PAPER III Paper 3 will last for 1 hours Attempt all questions from this section Answer Paper 3 on your objective test answer sheet, Use HB pencil throughout.

Answer All Questions Each question is followed by four options lettered A to D. Find out the correct options for each question and shade in pencil on your answer sheet, the answer space which bears the same letter as the option you Chosen. Give only one answer to each question. An example is given below

Knowledge of the use of iron enabled the early man in West Africa to A. learn the practice of agriculture. B. control his environment more effectively. C. acquire the knowledge of warfare. D. develop a religious culture.

The correct answer is control his environment more effectively , which is lettered B and therefore answer … B would be shaded. [A] [B] [C] [D]

Think carefully before you shade the answer spaces; erase completely any answer(s) you wish to change Now answer the following questions

What others are downloading   NECO Past Questions for all Subjects

NECO Paper 3 Objective Test Questions in History.

  • History is derived from a Greek word historia which means A. events. B. culture. C. development. D. inquiry.
  • Students should study history because it A. explains why ancient people fought wars. B. explains how nations rose and flourished. C. develops a sense of human solidarity D. enables the students to read better.
  • History develops the ability in students to A. read and interpret questions correctly B. have respect for truth and intellectual integrity C. identify all foreigners in a state D. know about past leaders only.
  • Emphasis is placed on non-documentary sources of writing African history because A. non-documentary sources come from very old people. B. documentary sources have proved incomplete. C. non-documentary sources tell interesting stories. D. documentary sources are expensive.
  • Which of the following groups of sources of history is non-documentary? A. Linguistics, oral tradition and Newspapers B. Diaries, Archaeology and Oral tradition C. Linguistics. Oral tradition and Archaeology D. Archaeology. Linguistics and Letters
  • The wells at the oases along the trade routes of the trans-Saharan trade were properly maintain by A. Keneta berber B. Bodouin Arab C. Shuwa Arab D. Tuarag Tribesmen.
  • In the trans-Saharan trade. salt was imported into the Western Sudan states from A. Bilma and Agades B. Taghaza and Agades C. Takedda and Bilma D. Bilma and Taghaza
  • The route which began from Morocco and Algeria to Fez. Marakesh, Sijilmasa and Awdaghost in the trans-Saharan trade was the A. central route. B. western route. C. northern route. D. southern route.
  • One of the major events in West Africa during the 19th century was the A. Islamic movements B. building of colleges. C. establishment of industries. D. empowerment of graduates.
  • Islam was brought to West Africa from North Africa by the A. Tijaniyya. B. Berber. C. Almornvids. D. Ahmadiyya.
  • Islam entered the West African region through A. trade and agriculture. B. cattle rearing and warfare. C. trade and peaceful means. D. agriculture and warfare.
  • One universal den of desolation, misery and crime. Europeans used these words to describe A. urban centres in Africa after independence. B. the enclaves of some secret societies. C. Africa before the coming of Europeans D. the rural areas during the colonial rules
  • The greatest effect of European conquest of states in West Africa was the A. mass movement of Africans to Europe. B. loss of political independence. C. decrease in number of Arabic Schools. D increase in the number of petitions to colonial governors.
  • The Europeans powers were successful in taking over lands in West Africa because the Africans were A. in need of European goods. B. not in religious harmony C. prepared to give up their land. D. militarily weak generally
  • The use of African slaves to save the Indians from extinction in the Americas was recommended by A. Emperor Charles V of Spain B. Bartholomew de las Casas. C. Isabel de Sosa. D. The British crown.
  • Slaves awaiting shipment were kept in a special place known as A. slaves house B. cell. C. barracoon D. Stare.
  • In the 19th century, European nations ended the trans-Atlantic slave trade in Africa for A. diplomatic and romantic reasons. B. economic and humanitarian reasons C. political and tactical reasons. D. psychological reasons only.
  • An important reason for the abolition of the slave trade was because A. Europeans had enough slaves. B. slaves were no longer efficient. C. of the effects of the Industrial Revolution. D. slaves pleaded for freedom.
  • Liberia was founded to serve as a place of settlement for freed slaves from A. Britain. B. Portugal. C. United States. D. Cuba.
  • The most effective method that the British used to suppress the slave trade was the A. declaration of war on some European nations. B. mobilization of its navy to patrol the high seas. C. mobilization of African warriors against it D. declaration of war on some African kingdoms.
  • On their arrival, the Portuguese tried to spread Christianity by first converting A. educated people. B. the warriors. C. the children. D. kings and chiefs
  • The early Christian missionaries faced the following problems except A. malaria and yellow fever. B. language barrier. C. attacks from African gods. D. severe local opposition
  • The education provided by the missionaries focused mainly on A. financial subjects. B. technical subjects. C. science and reading. D. reading and writings.
  • The most efficient means the Christian missionaries used in the 19th century to spread Christianity in West Africa was A. building of roads. B. promotion of agriculture. C. setting up of schools. D. advising local chiefs
  • Christian missionaries before 1800 engaged in all the following activities except A. training of priest B. training of craftsmen C. appointment of chiefs. D. introduction of new crops.
Want more History Objectives Questions like this? Get the Complete NECO History SSCE Exam Questions (Obj and Essay) in PDF Format from us .

NECO History Theory/Essay Past Questions,

Want more History Theory Questions like this? Get the Complete NECO History SSCE Exam Questions (Obj and Essay) in PDF Format from us .

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NECO Biology Past Questions and Answers | Theory and Objectives –Download PDF.

NECO Biology Past Questions and Answers | Theory and Objectives –Download PDF. The National Examination Council of Nigeria (NECO) Examination is around the corner. This article provides the readers with the information on how to download NECO Biology Past Questions and Answers. NECO Biology Questions are essential for you to know if you want to pass the NECO SSCE Biology Exams 2023.

The NECO Biology past questions and answers is a compiled material in PDF that contains past questions from NECO Biology Exams of previous years. The material comes with answers and is easily downloadable.

You can download the materials here. The instructions on how to download the NECO Biology can be found below. You are expected to follow the instructions in order for you to succeed. The material does not only contain information on NECO Biology Questions and answers but how to pass exams as well. You can see this article on the 21 indispensable steps to pass any exams with high grade .

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NECO Biology Sample Questions and Answers

PAPER II [Essay] Answer any  FOUR  questions. Write your answers on the answer booklet provided.

1. (a) i. What is respiration? ii. In a tabular form, state four differences between gaseous exchange and aerobic respiration. (b) i. Explain the term residual air. ii. What is the importance of residual air to mammals? (c) State four characteristic features associated with respiratory structures. (d) i. What is oxygen debt? ii. Outline three activities that can result in oxygen debt.

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ANS:  a) b) (i) During breathing out/expiration/exhalation; not all the air is removed from the lungs; the air left inside the lungs during breathing out is residual air. (ii) air is left in the lungs so that the lungs do not collapse; air is always left inside the lungs so that more oxygen can be removed (diffuse) into the blood stream. (c) (d) i. The build up of lactic acid; during strenuous exercise is poisonous and makes the muscles ache; oxygen is needed to break down/get rid of the lactic acid; that is why athletes continue breathing heavily even after the exercise is over; the oxygen needed to get rid of the lactic acid is known as oxygen debt. ii. Running; boxing; swimming /any correct example of strenuous activities.

2. (a) (i) What is sexual reproduction? (ii) Name four organs in mammals that produce sex hormones. (iii) Name one sex hormone produced by each of the organs named in 2(a)(i). (b) In a tabular form outline three differences between reproductions in lizards and birds. (c) (i) How are identical twins forms in humans? (ii) State three characteristics features of identical twins.

3. (a) Define the term osmosis. (b) State two ways each in which osmosis is of importance to: (i) plants; (ii) animals. (c) A normal terrestrial plant was watered daily with a hypertonic solution for about seven (7) days. It was discovered that the plant was not doing well. Explain why. (d) (i)Explain briefly how marine organisms overcome the problem of high salinity in their environment? (ii) List four examples of organisms found in the benthic zone of a marine habitat.

4. (a)  (i) What is conservation? (ii) State six factors responsible for the decline of the abundance and variety of wildlife. (b) Outline six ways in which the government can improve the situation in 4(a) (ii) above. (c) (i) What is Eutrophication? (ii) State two causes of eutrophication.

5. (a) What is reproduction? (b) In a tabular form, state six differences between sexual reproduction and (c) asexual reproduction. (d) State three advantages sexual reproduction. (e) (i) Describe the female reproductive structure of a flowering plant. (ii) List two factors necessary for germination of seeds.

6. (a) (i) What is courtship behaviour? (ii) Outline five benefits derived by the exhibition of courtship behaviour. (b) Describe briefly courtship behavior in the Agama lizard. (c) Describe briefly the mammalian placenta.

7. (a) Explain briefly the role of the skin as a sensory organ. (b) Describe briefly the vegetation of Tropical Rain Forest. (c) List five animals that inhabit the Tropical Rain Forest.

How to Download NECO Biology past Questions and Answers

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Tips on How to Pass NECO Examination 2023

If you want to Past the NECO Examination this year, you will need to follow the instructions below.

  • Practice daily with NECO Past Questions and Answers
  • Write out your subjects, the dates and time.
  • Engage in general revision few days to the examination and dwell more on the subjects you find difficult.
  • Focus on only your first paper a week to the exam. This would make it sweet and you will have energy to read for other papers.
  • Don’t read any other subject when it is two days to a particular subject.
  • When you have two papers that are separated by only one day, read the second one first before going to the subject you have first.
  • Ensure to be in the NECO examination venue at least two hours to the examination so that you would be balanced.
  • Try to be up to date in cases of changes in the timetable.
  • Have a personal copy of the NECO timetable and syllabus.
  • Go through your timetable daily so that you don’t miss any paper.
  • Don’t go to the hall when you are not having paper that day.

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NECO Mathematics Questions and Answers 2023-Essay and Theory | Free PDF

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